Looks like you get it from Windows update for now, unless someone in the hotfix sections can dig it out.

[h=3]Update information[/h][h=4]How to obtain this update[/h]This update will be rolled out gradually. It will be automatically installed if Automatic Updates is turned on and is either set to automatically install updates or notify to install updates.

This update is unavailable currently for deployment through Windows Server Update Services (WSUS) or as a stand-alone package. When it becomes available, the information will be made available in this article.